two-factor authentication
nounUK /ˌtuː ˈfæktər ɔːˌθentɪˈkeɪʃn/
US /ˌtuː ˈfæktər ɔːˌθentɪˈkeɪʃn/
A way to keep your account safe by using two things to prove it is really you.
The app asked for two-factor authentication, so I entered my password and then the code sent to my phone.
RELATED WORDS
OTHER MEANINGS
2. A security process where a user provides two different kinds of evidence to verify identity.
Banks often require two-factor authentication before allowing large transfers.
3. An extra layer of protection beyond a single password, such as a fingerprint or one-time code.
Enabling two-factor authentication reduced the number of hacked accounts.
4. A login method combining something you know with something you have.
Two-factor authentication combines your password with a code from your phone.